Docs: Indicate custom-fields support is required for registering meta (…

…#24325) * register_post_meta requires custom-fields support Post type needs to support `custom-fields` for `register_post_meta` to work. * Metabox: register_post_meta requires custom-fields
WordPress · Aug 10, 2020 · 30ee51f · 30ee51f
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diff --git a/...designers-developers/developers/tutorials/metabox/meta-block-2-register-meta.md b/...designers-developers/developers/tutorials/metabox/meta-block-2-register-meta.md
@@ -35,3 +35,4 @@ register_post_meta( 'post', '_myguten_protected_key', array(
 	}
 ) );
 ```
+**Note:** Your post type needs to support `custom-fields` for `register_post_meta` function to work.
diff --git a/...elopers/developers/tutorials/sidebar-tutorial/plugin-sidebar-3-register-meta.md b/...elopers/developers/tutorials/sidebar-tutorial/plugin-sidebar-3-register-meta.md
@@ -19,3 +19,5 @@ wp.data.select( 'core/editor' ).getCurrentPost().meta;
 ```
 
 Before adding the `register_post_meta` function to the plugin, this code returns a void array, because WordPress hasn't been told to load any meta field yet. After registering the field, the same code will return an object containing the registered meta field you registered.
+
+If the code returns `undefined` make sure your post type supports `custom-fields`. Either when [registering the post](https://developer.wordpress.org/reference/functions/register_post_type/#supports) or with [add_post_type_support function](https://developer.wordpress.org/reference/functions/add_post_type_support/).
-Original file line number
+Diff line change
@@ Expand Up / @@ -35,3 +35,4 @@ register_post_meta( 'post', '_myguten_protected_key', array( @@
     	}
     ) );
     ```
+    **Note:** Your post type needs to support `custom-fields` for `register_post_meta` function to work.
Original file line number	Diff line number	Diff line change
Expand Up		@@ -19,3 +19,5 @@ wp.data.select( 'core/editor' ).getCurrentPost().meta;
		```

		Before adding the `register_post_meta` function to the plugin, this code returns a void array, because WordPress hasn't been told to load any meta field yet. After registering the field, the same code will return an object containing the registered meta field you registered.

		If the code returns `undefined` make sure your post type supports `custom-fields`. Either when [registering the post](https://developer.wordpress.org/reference/functions/register_post_type/#supports) or with [add_post_type_support function](https://developer.wordpress.org/reference/functions/add_post_type_support/).